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Question

A thin uniform rod of mass 1 kg and length 0.3 m is smoothly hinged at its one end. The rod is released from horizontal position and allowed to rotate in vertical plane. The angular velocity of the rod when it becomes vertical is (g = 10 m/s2)

1 kg द्रव्यमान तथा 0.3 m लम्बाई की एक पतली समरूप छड़ अपने एक सिरे पर सुगमता से कीलकित है। छड़ को क्षैतिज स्थिति से छोड़ा जाता है तथा ऊर्ध्वाधर तल में घूर्णन करने दिया जाता है। जब छड़ ऊर्ध्वाधर हो जाती है, तब इसका कोणीय वेग है (g = 10 m/s2)

A
53rad/s
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B
103rad/s
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C
10 rad/s
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D
103rad/s
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Solution

The correct option is C 10 rad/s
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